Open Thread: How do you Give Back?

Those of us who work on the web are often keenly aware of the volunteer efforts that make our lives easier. Need a CSS tutorial? A quick search will find dozens, none of which cost you a dime. Have a thorny development question? Take your pick of groups and discussion boards, where someone will spend time and effort to get you an answer. Need to know what the capital of Andorra is? Wikipedia is your friend.

It’s easy to consume this wealth of free support – but do you produce any of it? What activities are you involved in that pay back some of what you’ve gotten from the web – or that pay forward good deeds without any particular sense of obligation? Are you an author, contributor, answerer, supporter? Or is this an itch that you don’t feel the need to scratch at all?